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IP forwarding also known as Internet routing is a process used to determine which path a packet or datagram can be sent. The process uses routing information to make decisions and is designed to send a packet over multiple networks.
Ideally, algorithms that are used for IP forwarding would take into account a packet/datagram's length, the type of service specified in the datagram's header, and the network load to determine the best path to send a packet to its intended destination. However, in general most routing software determines its route through a shortest path algorithm.
- Comer, Douglas E. (2000). Internetworking with TCP/IP (4 ed.). Prentice Hall: Upper Saddle River, NJ.
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